From ff91fd4a2749f1ea8722189aaec938e51bce4222 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 4 Jun 2012 12:41:05 +0100
Subject: [PATCH] uxa: Check for failure from drmModeGetConnector()

Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/intel_display.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/intel_display.c b/src/intel_display.c
index fcb3239d..7d75abb4 100644
--- a/src/intel_display.c
+++ b/src/intel_display.c
@@ -717,6 +717,12 @@ intel_output_detect(xf86OutputPtr output)
 	drmModeFreeConnector(intel_output->mode_output);
 	intel_output->mode_output =
 		drmModeGetConnector(mode->fd, intel_output->output_id);
+	if (intel_output->mode_output == NULL) {
+		/* and hope we are safe everywhere else */
+		xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
+			   "drmModeGetConnector failed, reporting output disconnected\n");
+		return XF86OutputStatusDisconnected;
+	}
 
 	switch (intel_output->mode_output->connection) {
 	case DRM_MODE_CONNECTED: